At about 63 minutes into The Patriot, Mel Gibson and his French counterpart go into a tavern and shout “God save King George “.
The camera does a close up on a long haired tavern goer. He looks like Walton Goggins. Is he uncredited in The Patriot?
I'd say no. He does look like him, but I'm sure it's not actually Goggins.
There's actually another lookalike actor sitting at a table just before the guy you're talking about, with long hair and a receding hairline. Maybe he has a lot of cousins!
It's at the 1:11 mark in the extended version, for anyone wanting to check.